Sucks walking into a store and only seeing regular 270 win. Kind of a pain to order offline. About the only issue with the WSM I’ve found. Killed a pile of animals with mine.
Option 2. You’ll probably never burn the barrel out of either of those barrels. Always nice to have a backup rifle or loaner. Easy to find ammo on both calibers and good ballistics on both. If elk is on the menu I’d run a heavier bullet out of the 308 and lights on the creed for deer and target...
Haven’t been on a sheep hunt but have done ibex and a mtn goat hunt. Hard to beat a tikka for price and weight. Throw a 2-10 NF on there and don’t think there would be too much you couldn’t do with that setup.